Specifications
Governor's
Park
Condominium
777 Washington Street
Denver,
CO
H.
Switches shall be
of
the direct current type, magnet operated with contacts
of
design and mate-
rial to insure maximum conductivity, long life and reliable operation without overheating or
excessive wear, and provide a wiping action to prevent sticking due to fusion. Switches carry-
ing highly inductive currents shall be provided with arc deflectors or suppressers.
1.
All switches, printed circuit boards and discrete components shall be mounted in the front
of
panels together with any small electronic components. Large capacity resistors shall be
mounted on the rear, sides or top
of
panels.
J. Protective devices shall be provided to protect the driving motor
of
the generator against over-
load and single phasing in all three phases
of
the Delta connection, and/or protect the Motor
Drive Unit or VVVF Drive against overload and phase reversal.
K.
Time delay circuits shall be
of
an accepted design that is reliable and consistent, such as elec-
tronic timing circuits. No air dash pot relays shall be used.
L.
Wiring on the controller, whether factory or field wiring, shall be done in neat workmanlike
order and all connections shall be made to studs and/or terminals by means
of
grommets,
solderless lugs or similar connections. All wiring shall be copper.
M.
Terminal blocks with identifying studs shall be provided on the controller for connection
of
board wiring or external wiring.
N.
IdentifYing symbols or letters shall be permanently marked on or adjacent to each device on
the controller and the marking shall be identical to marking used on the wiring diagrams.
In
addition to the identifYing marks, the ampere rating shall be marked adjacent to all fuse hold-
ers.
O.
All input-output devices shall be marked similarly to relays for easy reference to wiring dia-
grams.
P.
The
selector shall be part
of
the microprocessor. Position determination in the hoistway may
be through fixed tape in the hoistway or by an encoder fitted to the governor.
The
features and
electrical circuits shall be so designed to permit accurate control and rapid acceleration and re-
tardation without discomfort.
Q.
The Elevator Contractor shall confirm which floor is to be the main dispatch floor, the Fireman
Recall floor and the Alternate Fireman Recall floor, prior to fabrication
of
the control equip-
ment. The control shall be programmable to enable the dispatch and recall floors to be
changed in the field.
R.
The Elevator Contractor shall provide all electrical information necessary for review
by
the
Owner or Consultant at the time
of
submission
of
the elevator hoistway layout drawings.
S.
The Property Manager and Elevator Consultant will judge riding qualities
of
cars and enforce
the following requirements. The Contractor shall make all necessary adjustments.
l.Acceleration and Deceleration: Starting and stopping shall
be
smooth and comfort-
able, without obvious steps
of
acceleration. Slowdown, stopping and leveling shall be
Elevator Consulting and Design, Inc.
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